/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/FFDLattice.h
Using the Lattice's current control point positions, the original embedding information, and the original normals contained in an overlay, compute the new rotated normals
void GetRotatedOverlayNormals ( const [TArray](API\Runtime\Core\Containers\TArray)< FVector3d > & LatticeControlPoints, const [FDynamicMeshNormalOverlay](API\Runtime\GeometryCore\DynamicMesh\FDynamicMeshNormalOverlay) * NormalOverlay, [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & OutNormals, [ELatticeInterpolation](API\Plugins\DynamicMesh\Operations\UE__Geometry__ELatticeInterpolat-) Interpolation, [FLatticeExecutionInfo](API\Plugins\DynamicMesh\Operations\FLatticeExecutionInfo) ExecutionInfo, [FProgressCancel](API\Runtime\GeometryCore\Util\FProgressCancel) * Progress ) const